584 



(i) ensure that the approved procedures referred to in 

 Eegulation 5(8) (c) of this Annex are complied with and 

 that the appropriate entries are made in the Cargo Record 

 Book; and 



(ii) ensure that any discharge into the sea is made in ac- 

 cordance with the requirements of Regulation 5(8) of this- 

 Annex and an appropriate entry is made in the Cargo Record 

 Book, 

 (e) If after unloading a Category B substance within a special 

 area, any residues or tank washings are to be retained on board 

 until the ship is outside the special area, the Master shall so indi- 

 cate by an appropriate entry in the Cargo Record Book and in 

 this case the procedures set out in Regulation 5 (2) of this Annex 

 shall be applicable. 



Category D Suhstances in All Areas 



(7) The Master of a ship shall, with respect to a Category D sub- 

 stance, ensure compliance with the following : 



(a) If a tank is partially unloaded or unloaded but not cleaned^ 

 an appropriate entry shall be made in the Cargo Record Book. 



(b) If the tank is to be cleaned at sea : 



(i) the cargo piping system serving that tank shall be 

 drained and an appropriate entry made in the Cargo Record 

 Books ; 



(ii) where it is intended to discharge the quantity of sub- 

 stance remaining into the sea, the necessary dilution of the 

 substance satisfactory for such a discharge shall be achieved. 

 An appropriate entry shall be made in the Cargo Record 

 Book; 



(iii) where the tank washings are not discharged into tliB 

 sea, if any internal transfer of tank washings takes place 

 from that tank an appropriate entry shall be made in the 

 Cargo Record Book ; and ^ 



(iv) any subsequent discharge into the sea of such tank 

 washings shall be made in accordance with the requirements 

 of Regulation 5(4) of this Aimex. 



(c) If the tank is to be cleaned in port : 



(i) the tank washings shall be discharged to a reception fa- 

 cility and an appropriate entry shall be made in the Carga 

 Record Book ; or 



(ii) the tank washings shall be retained on board the ship 

 and an appropriate entry shall be made in the Cargo Record 

 Book indicating the location and disposition of the tank 

 washings. 



Discharge from a Slop Tanh 



(8) Any residues retained on board in a slop tank, including those 

 from pump room bilges, which contain a Category A substance, or 

 within a special area either a Category A or a Category B substance, 

 shall be discharged to a reception facility in accordance with the pro- 

 visions of Regulation 5(1), (7) or (8) of this Annex, whichever is 



